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NFB24 Damper Actuator, On/Off, 24V, spring return (fail-safe) For On/Off, fail-safe control of dampers in HVAC systems. Actuator sizing should be done in accordance with the damper manufacturer’s specifications. Control is On/Off from an auxiliary contact or a manual switch. The actuator is mounted directly to a damper shaft up to 1.05” in diameter by means of its universal clamp. A crank arm and several mounting brackets are available for applications where the actuator cannot be direct coupled to the damper shaft. Download the Data Sheet Download the Installation Guide
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🇺🇸 Ship from USA · On Agora since 2025
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